Engine exhaust nozzle seal

A seal for a gas turbine engine exhaust nozzle, comprising:

• a body, having a length and a width, and a plurality of corrugations formed in said body extending across said width, and a first and a second channel, each channel having walls extending lengthwise along said body, wherein one of said channels is positioned on one side of said width, and the other said channel is positioned on the other side of said width;
• a spine member, attached to one side of said body, extending along the length of said body;
• and
• a plurality of face segments, each attached to said body on the side of said body opposite said side to which said spine member is attached, each said face segment having:
• a first and a second end, each end having a thickness;
• a midsection, having an inner and an outer surface, and a first edge and a second edge, said edges parallel with each other and substantially perpendicular with said ends;
• a first flange, attached to said first edge of said midsection;
• a second flange, attached to said second edge of said midsection, wherein said first and second flanges comprise mating geometries such that when face segments are positioned adjacent each other, said first flange of one face segment couples with said second flange of the adjacent face segment, said flanges separated by a predetermined gap along their geometries;
• wherein said mating geometries of said first and second flanges substantially prevent gases passing along said outer surface of said face segments from passing between said face segments, and allow thermal growth of adjacent face segments;
• wherein said ends of said face segments are freely received within said first and second channels such that said ends may translate within said channels.